Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2024-3094

Malicious code was discovered in the upstream tarballs of xz, starting with version 5.6.0. Through a series of complex obfuscations, the liblzma build process extracts a prebuilt object file from a disguised test file existing in the source code, which is then used to modify specific functions in the liblzma code. This results in a modified liblzma library that can be used by any software linked against this library, intercepting and modifying the data interaction with this library.

Published

2024-03-29T17:15:21.150

Last Modified

2025-02-06T09:15:10.820

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 10.0 (CRITICAL)

Weaknesses

Type: Secondary
CWE-506

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	tukaani	xz	5.6.0	Yes
Application	tukaani	xz	5.6.1	Yes

References

https://access.redhat.com/security/cve/CVE-2024-3094 Vendor Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=2272210 Issue Tracking, Vendor Advisory ([email protected])
https://www.openwall.com/lists/oss-security/2024/03/29/4 Mailing List ([email protected])
https://www.redhat.com/en/blog/urgent-security-alert-fedora-41-and-rawhide-users Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2024/03/29/10 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2024/03/29/12 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2024/03/29/4 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2024/03/29/5 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2024/03/29/8 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2024/03/30/12 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2024/03/30/27 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2024/03/30/36 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2024/03/30/5 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2024/04/16/5 (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/security/cve/CVE-2024-3094 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://ariadne.space/2024/04/02/the-xz-utils-backdoor-is-a-symptom-of-a-larger-problem/ (af854a3a-2127-422b-91ae-364da2661108)
https://arstechnica.com/security/2024/03/backdoor-found-in-widely-used-linux-utility-breaks-encrypted-ssh-connections/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://aws.amazon.com/security/security-bulletins/AWS-2024-002/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://blog.netbsd.org/tnf/entry/statement_on_backdoor_in_xz (af854a3a-2127-422b-91ae-364da2661108)
https://boehs.org/node/everything-i-know-about-the-xz-backdoor Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1068024 Mailing List, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.gentoo.org/928134 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=2272210 Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.suse.com/show_bug.cgi?id=1222124 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://discourse.nixos.org/t/cve-2024-3094-malicious-code-in-xz-5-6-0-and-5-6-1-tarballs/42405 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://gist.github.com/thesamesam/223949d5a074ebc3dce9ee78baad9e27 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/advisories/GHSA-rxwq-x6h5-x525 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/amlweems/xzbot (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/karcherm/xz-malware Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://gynvael.coldwind.pl/?lang=en&id=782 Technical Description, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-security-announce/2024/msg00057.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.freebsd.org/archives/freebsd-security/2024-March/000248.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lwn.net/Articles/967180/ Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://news.ycombinator.com/item?id=39865810 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://news.ycombinator.com/item?id=39877267 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://news.ycombinator.com/item?id=39895344 (af854a3a-2127-422b-91ae-364da2661108)
https://openssf.org/blog/2024/03/30/xz-backdoor-cve-2024-3094/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://research.swtch.com/xz-script (af854a3a-2127-422b-91ae-364da2661108)
https://research.swtch.com/xz-timeline (af854a3a-2127-422b-91ae-364da2661108)
https://security-tracker.debian.org/tracker/CVE-2024-3094 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.alpinelinux.org/vuln/CVE-2024-3094 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.archlinux.org/CVE-2024-3094 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20240402-0001/ (af854a3a-2127-422b-91ae-364da2661108)
https://tukaani.org/xz-backdoor/ Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://twitter.com/LetsDefendIO/status/1774804387417751958 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://twitter.com/debian/status/1774219194638409898 Press/Media Coverage (af854a3a-2127-422b-91ae-364da2661108)
https://twitter.com/infosecb/status/1774595540233167206 Press/Media Coverage (af854a3a-2127-422b-91ae-364da2661108)
https://twitter.com/infosecb/status/1774597228864139400 Press/Media Coverage (af854a3a-2127-422b-91ae-364da2661108)
https://ubuntu.com/security/CVE-2024-3094 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.cisa.gov/news-events/alerts/2024/03/29/reported-supply-chain-compromise-affecting-xz-utils-data-compression-library-cve-2024-3094 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
https://www.darkreading.com/vulnerabilities-threats/are-you-affected-by-the-backdoor-in-xz-utils Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.kali.org/blog/about-the-xz-backdoor/ (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2024/03/29/4 Mailing List (af854a3a-2127-422b-91ae-364da2661108)
https://www.redhat.com/en/blog/urgent-security-alert-fedora-41-and-rawhide-users Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.tenable.com/blog/frequently-asked-questions-cve-2024-3094-supply-chain-backdoor-in-xz-utils Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.theregister.com/2024/03/29/malicious_backdoor_xz/ Press/Media Coverage (af854a3a-2127-422b-91ae-364da2661108)
https://www.vicarius.io/vsociety/vulnerabilities/cve-2024-3094 (af854a3a-2127-422b-91ae-364da2661108)
https://xeiaso.net/notes/2024/xz-vuln/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)